Copygraph



Nov. s, 1935. A. G. HOE 2,020,135l

' COPYGRAPH Filed July 9, 1965 wn-Nassss 16' NVENTOR ywfred (yiJfoe.

Y BY

0 @mr Em@ M ATTORNEY Patented Nov. 5, 1935 UNITED STAT-ES PATENT oFFicE3 Claims.

This invention relates to a device for making a copy on paper or othersuitable material of the outline or contour of moldings, variousgeometrical figures, and irregular surfaces.

The principal objectv of the invention is the provision of a device ofthe indicated character by which copies may be simply and accuratelymade, and a device which is of eiectual and substantial design.

The invention consists in the improved features Y as hereinafterdescribed and claimed, and as illustrated in the accompanying drawing;in which- Fig. 1 is a plan of a device embodying the features of theinvention;

Fig. 2 is an end View of the device;

Fig. 3 is an enlarged section taken on the line 3--3 of Fig. 1, theboard being shown in elevation;

Fig. 4 is an enlarged section on the line 4-4 of Fig. 2.

Referring now more particularly to the several views of the drawing, itwill be apparent that the device includes a board I0 of any suitablelength and width, and whose opposite sides are straight and parallel toeach other. 'Ifhe board I0 presents a flat surface I I to which may beapplied in any suitable manner a sheet of paper or other material onwhich a copy is to be marked. The device also includes a frame I2 whichmay be made of wood or light metal. The frame I2 consists of sides. I3and a cross bar I4. The sides I3 are grooved as at I5 and have flangesI6 corresponding to the grooves I5. The grooves I5 receive the oppositeside edge portions of the board I9, and the flanges I6 engage the saidedge portions in such manner that the frame I2 may be slid with respectto the board I0 in opposite directions. The frame has a certain amountof side play in order that it may be moved freely along the board I0. Ifdesired the frame may be provided with anti-friction rollers I1 whichare applied to the sides I3 of the frame in the present instance to rollin contact with the opposite sides of the board I0.

The device includes a tracing element I8 which consists of a rod orstaff I9 of suitable length. The rod I9 has a clutch 20 onone end togrip a tracer or needle or pointer ZI of any suitable type adapted tofollow the outline or contour of the surface to be copied. The rod I9may also include a swivel 22 near the tracer 2| to allow it to be turnedif desired, but which may bemade rigid. The frame I2 at one -end hasbearings 23 which slidably support the rod I9 of the tracing element I8in order that said element will move Y with the frame I2 and also tohave axial movement at a right angle with respect to the sides of theboard I0. If desired one of the bearings 23 may be provided with a clamp24 to engage the rod I9 to hold the tracing element against axial 5movement with respect to the frame I2.

The device also includes a scribing element 25 which consists of a tube26 having clamping members 21 and 28 in threading engagement therewith,and a graphic instrument such as a 10 pen or pencil 29 extends into thetube 26 and is under the influence of an expansion coil spring 39 Withinthe tube 26. The scribing element is adjustably carried by a strip 3|having a longitudinal slot 32 therein. The tube 26 of the element 25 is15 received in the slot 32 while the members 21 and 23 are clamped inengagement with the strip 3l to thus retain the element 25 in operativeposition on the strip 3|. The scribing element 25 is connected with thetracing element I8 by the use of 20 a set screw 33 which extends in theslot 32 in the strip 3l and a longitudinal slot 34 in the rod I9, andwhich is in threadingl engagement with a grooved clamping member 35. Thescrew 33 serves to tightly bind the rod I9 to the strip 3l. 25

. The scribing element 25 is therefore caused to move in response to themovement imparted manually to the tracing element I3 when using` theelement I8 to trace the outline or contour of the surface to be copied.

In order to establish connection between the scribing element 25 and theframe I2 there is provided a'strip 36 having a longitudinal slot 31therein. The strip 36 has the opposite ends thereof secured to blocks 38respectively on the 35 sides I3 of the frame I2 at the end opposite thathaving the bearings 23 which support the tracing element I 8. A clampingelement 39 is used to connect the strip 36 with the strip 3 I. Thescribing element 25 will be moved in response to the 40 movement of theframe I2, as well as in response to the movement of the tracing elementI8. The tracing element I8 gives movements to the scribing element 25 inal1 directions with respect to the sheet applied to the board I Il. A 45set screw 40 carried by one of the sides I3 serves to hold the framerigid to the board I0 when desired.

From the foregoing it will be obvious that the *device may be used forcopying the outline or 50 contour of moldings, geometrical gures ofvarious shapes, and irregular surfaces; that the tracing element I8 maybe held against axial movement when desired; -that the elements I8 and25 may be adjusted in order to start the copy to be 55 made at anyparticular point on the copy sheet; and that the object of the inventionmay be attained by the features described.

I claim:

1. A copygraph comprising a board to hold a sheet on which a copy is tobe marked, a frame engaged with said board for guided movement inopposite directions with respect thereto, a tracing element, meansmounting the tracing element on the frame for movement therewith andaxial movement at a right angle With respect to the path of movement ofthe frame, a scriber, a slotted member adjustably connected With saidtracing element, said scriber being adjustable in the slot in saidmember, and means to retain the scriber in the adjusted positions.

2. A copygraph comprising a board to hold a sheet on which a copy is tobe marked, a frame engaged with said board for guided movement inopposite directions with respect thereto, a

slotted member on the frame at one end and extending at a right angle tosides of the board, a tracing element, means mounting the tracingelement on the frame at its other end for movement therewith and axialmovement at a right angle to the sides of the frame, a slotted memberconnected with the rst slotted member and tracing element, and ascribing element adjustably engaged with said second mentioned slottedmember.

3. In a device of the character described, a tracing element, meansmounting the tracing element for movement with respect to the subject tobe traced, said element having a slotted portion, a rigid member, meansengageabie with said slotted portion and said member to retain saidmember in different adjusted positions on said portion, and a scrbingelement adjustably connected with said rigid member.

ALFRED G. HOE.

